1908 San Francisco had a disposable society, but unlike today's planned obsolescent disposable consumer goods, men and horses were used up and discarded

Moving a big, very heavy house, built of much heavier timbers and lumber, on SF's hills, was a monumental task. Men jacking the house with hand operated screw jacks, and cribbing... no mamby pamby computer controlled, self leveling hydraulics. Then just two horses turning winches to move it forward. The horses probably had to carry the gear to the site, also.